Through prayer he brought down rain during a drought, and like the Prophet Elisha he separated the waters of a river, he drove harmful beasts from the fields, he filled the nets of fishermen when they had no success in fishing, and he did many other miracles. In addition to these things, he was able to heal the sick and cast out demons.
Saint Hilarion suffered on Great and Holy Thursday in the year 754, when the military commnander Lakhanodrakon suddenly descended upon the Pelekete monastery in pursuit of icon-venerators, boldly forcing his way into the church, disrupting the service and throwing the Holy Gifts upon the ground. Forty-two monks were arrested, slapped into chains, sent to the Edessa district and murdered. The remaining monks were horribly mutilated, they beat them, they burned their beards with fire, they smeared their faces with tar and cut off the noses of some of the confessors. Saint Hilarion died for the veneration of icons during this persecution.
Saint Hilarion left behind spiritual works containing moral directives for spiritual effort. Saint Joseph of Volokolamsk (September 9 and October 18) was well acquainted with the work of Saint Hilarion, and he also wrote about the significance of monastic struggles in his own theological works.
Troparion — Tone 5
Adorned with gladness of soul / As a pure vessel of the wisdom of Christ, / You were a reflection of the life in God. / Therefore you are resplendent with the light of virtues, / O Father Hilarion, / And you guide us unerringly to the salvation of our souls!
Kontakion — Tone 4
Righteous Hilarion, like a fruitful olive tree that has blossomed, / with your oil you mystically make radiant those who sing to you: / “Rejoice, unwavering rule of the righteous.”